CN109168245A - A kind of standing-wave ratio regulating device - Google Patents
A kind of standing-wave ratio regulating device Download PDFInfo
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- CN109168245A CN109168245A CN201811231141.9A CN201811231141A CN109168245A CN 109168245 A CN109168245 A CN 109168245A CN 201811231141 A CN201811231141 A CN 201811231141A CN 109168245 A CN109168245 A CN 109168245A
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- wave ratio
- regulating device
- feeder line
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/02—Circuits or systems for supplying or feeding radio-frequency energy
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- Spectroscopy & Molecular Physics (AREA)
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Abstract
The invention discloses a kind of standing-wave ratio regulating devices, including ontology and sliding contact ring；The ontology includes the outer feeder line and interior feeder line of coaxial arrangement, the inner ring surface of the sliding contact ring and the interior feeder line are in electrical contact, the outer ring surface of sliding contact ring and the outer feeder line are in electrical contact, and the sliding contact ring can reciprocatingly slide along the axis direction of the ontology；The ontology is equipped with the first port for connecting transmitter, and the second port for matching connection load.Standing-wave ratio regulating device provided by the invention, analog accelerator frequency cavity with equivalent impedance variation, from different standing-wave ratios corresponding to mismatch Conditions are matched to, for detecting and testing the headend equipment of accelerator frequency cavity, such as transmitter, the antireflection ability of radio frequency transmission equipment.
Description
Technical field
The present embodiments relate to particle accelerator technical field more particularly to a kind of standing-wave ratio regulating devices.
Background technique
Ultrashort wave high-power transmitter, rated output power (mean power) reach tens to hundred kilowatts, for being grain
Sub- accelerator provides radio-frequency voltage, accelerates to charged particle.
It is high in accelerator frequency cavity exercise routine since accelerator is not ideal purely resistive matched load always
Frequency chamber can work long hours under mismatch Conditions, and standing-wave ratio is usually larger, cause reflection power larger, or even generate total reflection；
When transmitter high-power output, reflection power is excessive very harmful to radio frequency transmission equipment or transmitter.
The mismatch Conditions loaded in actual motion are uncontrollable, in order to avoid unknown situation is to the damage of accelerator headend equipment
It is bad, it may be preferable to prior fictitious load mismatch Conditions, and carry out high-poWer test.Therefore a kind of standing wave simulation generator is needed,
Artificial controllably de-regulation standing-wave ratio, the antireflection ability of the accelerators headend equipments such as test transmitter, radio frequency transmission equipment.
Summary of the invention
The present invention provides a kind of standing-wave ratio regulating device, can controllably adjust standing-wave ratio, fictitious load mismatch Conditions, and
High-poWer test is carried out, to test the antireflection ability of the accelerators headend equipments such as transmitter, radio frequency transmission equipment.
The embodiment of the invention provides a kind of standing-wave ratio regulating devices, including ontology and sliding contact ring；
Ontology includes the outer feeder line and interior feeder line of coaxial arrangement, and the inner ring surface of sliding contact ring and interior feeder line are in electrical contact, sliding
The outer ring surface and outer feeder line of dynamic contact ring are in electrical contact, and sliding contact ring can reciprocatingly slide along the axis direction of ontology；
Ontology is equipped with the first port for connecting transmitter, and the second port for matching connection load.
Optionally, which further includes for driving sliding contact ring back and forth to slide along the axis direction of ontology
Dynamic driving device.
Optionally, driving device includes at least one push rod, and one end of push rod is connect with sliding contact ring.
Optionally, driving device further includes push-plate, and push-plate is set to the one end of push rod far from sliding contact ring.
Optionally, which further includes fixed plate component, and fixed plate component is set to the end of ontology, is used
In fixed outer feeder line and interior feeder line.
Optionally, outer feeder line and interior feeder line are respectively the first round tube and the second round tube being coaxially disposed, fixed plate component packet
Include fixed plate, the first fixing piece and the second fixing piece；First fixing piece is equipped with fixation hole, and the first round tube is arranged in fixation hole,
First fixing piece is connect with fixed plate；Second fixing piece is set in the second round tube, and the second fixing piece is connect with fixed plate.
Optionally, fixed plate component is equipped with is arranged in through-hole with the one-to-one through-hole of push rod, push rod.
Optionally, the position on fixed plate component where through-hole is equipped with guide part, and guide part is equipped with lead corresponding with push rod
Xiang Kong, push rod are arranged in pilot hole.
Optionally, push rod is screw rod, and pilot hole inner wall is equipped with screw thread compatible with screw rod.
Optionally, which further includes reducer union, and one end of reducer union is connect with second port, is become
The other end of drive connector is connect with matched load.
Optionally, finite place piece is set on guide part, and locating part runs through guide part, and alternative is abutted with push rod, uses
In limitation push rod along the movement of the axis direction of ontology.
Standing-wave ratio regulating device provided in an embodiment of the present invention, including ontology and sliding contact ring；Ontology includes coaxially setting
The outer feeder line and interior feeder line set, the inner ring surface of sliding contact ring and interior feeder line are in electrical contact, the outer ring surface of sliding contact ring and outer feedback
Line electrical contact, sliding contact ring can reciprocatingly slide along the axis direction of ontology, change the access length of transmission line with this, thus
The input impedance for changing transmission line carries out controllable adjustment, fictitious load mismatch Conditions to standing-wave ratio, and carries out high-poWer test,
To test the antireflection ability of the accelerators headend equipments such as transmitter, radio frequency transmission equipment.
Detailed description of the invention
Fig. 1 is the 3-D view of standing-wave ratio regulating device provided in an embodiment of the present invention；
Fig. 2 is the front view of standing-wave ratio regulating device in Fig. 1；
Fig. 3 is the sectional view of standing-wave ratio regulating device in Fig. 1；
Fig. 4 is the partial enlargement diagram of a-quadrant in Fig. 3；
Fig. 5 is the partial enlargement diagram of B area in Fig. 3；
Fig. 6 is the simulation result diagram of the return loss of first port 113 under matching status；
Fig. 7 is the simulation result diagram of the standing-wave ratio of first port 113 under matching status；
Relationship change figure of the Fig. 8 between standing-wave ratio and the access length of transmission line；
Fig. 9 is the functional block diagram of small-power test；
Figure 10 is test result figure of transmission line access length when being 104.5cm；
Figure 11 is test result figure of transmission line access length when being 94.2cm；
Figure 12 is test result figure of transmission line access length when being 77.5cm；
Figure 13 is test result figure of transmission line access length when being 0cm；
Figure 14 is the functional block diagram of large power test.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
It will the technical scheme of the embodiment of the invention will be described in further detail in conjunction with attached drawing, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
In the description of the present invention unless specifically defined or limited otherwise, term " connected ", " connection ", " fixation " are answered
It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or is integral；It can be mechanical connection,
It can be electrical connection；It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
Logical or two elements interaction relationship.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
The embodiment of the invention provides a kind of standing-wave ratio regulating devices, can controllably adjust standing-wave ratio, and fictitious load loses
With state, and high-poWer test is carried out, to test the antireflection energy of the accelerators headend equipments such as transmitter, radio frequency transmission equipment
Power.Fig. 1 is the 3-D view of standing-wave ratio regulating device provided in an embodiment of the present invention, and Fig. 2 is standing-wave ratio regulating device in Fig. 1
Front view, Fig. 3 are the sectional view of standing-wave ratio regulating device in Fig. 1, and Fig. 4 is the partial enlargement diagram of a-quadrant in Fig. 3, are such as schemed
Shown in 1-4, which includes ontology 110 and sliding contact ring 101.
Wherein, ontology 110 includes the outer feeder line 111 and interior feeder line 112 of coaxial arrangement, constitutes transmission line.Outer 111 He of feeder line
A cavity is formed between interior feeder line 112, sliding contact ring 101 is located in the cavity, and is sheathed on interior feeder line 112.Sliding connects
Touching ring 101 is conductive metal, such as copper ring, and 101 inner ring surface of sliding contact ring and interior feeder line 112 are in electrical contact, sliding contact ring 101
Outer ring surface and outer feeder line 111 be in electrical contact, be so shorted outer feeder line 111 and interior feeder line 112.Sliding contact ring 101 can be along this
The axis direction of body 110 reciprocatingly slides in the cavity between outer feeder line 111 and interior feeder line 112, changes connecing for transmission line with this
Enter length, to change the input impedance of transmission line, controllable adjustment is carried out to standing-wave ratio.
Ontology 110 is equipped with the first port 113 for connecting transmitter, and the second port for matching connection load
114.In embodiments of the present invention, first port 113 is one end of ontology 110, and second port 114 is to open on ontology 110
If Single port.
Wherein, transmitter is for providing radio frequency voltage signal, and in embodiments of the present invention, the working frequency of transmitter is
71.3MHz, working condition are continuous wave, and the equivalent impedance of matched load is 50 Ω, and the characteristic impedance of transmission line is 50 Ω.Its
In, when the characteristic impedance of transmission line is that transmission line is in traveling wave state, the voltage and current ratio of same point, when working frequency is super
When crossing 30kHz, numerical value is only related with the structure of transmission line, material and frequency, and unrelated with the length of transmission line.
The working principle of the standing-wave ratio regulating device is as follows:
According to the input impedance equation of transmission line:
Wherein ZinFor transmission line input impedance, Z0For line characteristic impedance, ZlFor transmission line load impedance, β is phase shift
Constant, l are the access length of transmission line, i.e. length of transmission line between second port 114 and sliding contact ring.Of the invention real
It applies in example, transmission line is 50 Ω coaxial lines, therefore Z0=50 Ω；Outer feeder line 111 and interior feeder line 112 pass through contact ring 101 and realize end
Terminal shortcircuit, therefore Zl=0；J is imaginary unit.The input impedance equation that above-mentioned known quantity substitutes into transmission line can be obtained, terminal is short
The input impedance Z of road and length-adjustable this section of coaxial transmission lineinThe access length l of=j50tan β l, transmission line can pass through
The slidable adjustment of sliding contact ring, as l=λ/4, Zin=j ∞ (is equivalent to open circuit), and the parallel impedance with matched load is 50
Ω, standing-wave ratio is equal to 1 or close to 1 at this time；As l=0, Zin=0 (relative to short circuit), the parallel impedance with matched load are 0,
Standing-wave ratio is very big at this time, it is believed that standing-wave ratio is infinitely great；As 0 < l < λ/4,0 < Zin< j ∞, so with matched load
Parallel impedance also changes between 0~∞, and standing-wave ratio changes between 1 and infinity at this time, to realize transmission line input resistance
Anti- variation is realized and continuously, is controllably adjusted to standing-wave ratio progress.
The embodiment of the present invention, the main principle with quarter-wave impedance transformation in transmission line theory, in load
The coaxial transmission line of section termination short circuit in parallel, short road surface position is adjustable, changes parallel connection by changing the position in short-circuit face
The access length of transmission line.When the access length of transmission line is equal to the quarter-wave of working frequency, this section of transmission in parallel
The input impedance Z of linein=j ∞ is equivalent to, entire standing-wave ratio adjusting dress in parallel with the transmission line that one section is opened a way for load
The equivalent load set is still 50 Ω, that is, what is reached is matching status, and theoretically standing-wave ratio should be 1, can be slightly larger than in practice
1, can approximation regard matching status as；When the access length of transmission line is equal to 0, the input impedance Z of this section of transmission line in parallelin=0,
For load, it is equivalent in parallel with one section of short-circuit transmission line, the equivalent load of entire standing-wave ratio regulating device is 0, that is, is reached
To be full transmitting state, theoretically standing-wave ratio should be ∞, and standing-wave ratio is finite value in practice, and numerical value reaches tens
When, can approximation regard total reflection state as；When the access length of transmission line is between both the above situation, i.e., less than four/
One wavelength, while being greater than 0, as the access length of transmission line gradually shortens, the equivalent load of entire standing-wave ratio regulating device again
50 Ω are gradually deviated from, gradually from mismatch Conditions transition is matched to, standing-wave ratio is also increased, that is, is realized and simulated different standing waves
Than, and it is continuously adjustable.
Standing-wave ratio regulating device provided in an embodiment of the present invention, including ontology and sliding contact ring；Ontology includes coaxially setting
The outer feeder line and interior feeder line set, the inner ring surface of sliding contact ring and interior feeder line are in electrical contact, the outer ring surface of sliding contact ring and outer feedback
Line electrical contact, sliding contact ring can reciprocatingly slide along the axis direction of ontology, change the access length of transmission line with this, thus
The input impedance for changing transmission line carries out controllable adjustment, fictitious load mismatch Conditions to standing-wave ratio, and carries out high-poWer test,
To test the antireflection ability of the accelerators headend equipments such as transmitter, radio frequency transmission equipment.
Optionally, which further includes for driving sliding contact ring back and forth to slide along the axis direction of ontology
Dynamic driving device.Optionally, with reference to Fig. 1-4, in the present invention wherein an embodiment, driving device includes three push rods 102,
One end of push rod 102 is connect with sliding contact ring 101, on specific sliding contact ring 101, is circumferentially uniformly provided with three screw threads
Hole, the end that push rod 102 is connect with sliding contact ring 101 are equipped with the screw thread being adapted to the threaded hole.Push rod 102 is for pushing cunning
Dynamic contact ring 101 reciprocatingly slides in cavity between outer feeder line 111 and interior feeder line 112 along the axis direction of ontology 110.
Optionally, driving device further includes push-plate 103, and push-plate 103 is set to push rod 102 far from sliding contact ring 101
One end, push-plate 103 push or pull on push rod 102, convenient for applying push-and-pull operation to drive sliding contact ring 101 to slide.Specifically
, the corresponding push rod 102 of push-plate 103 is set there are three through-hole, and push rod 102 is arranged in through-hole, and push rod 102 is far from sliding contact ring
101 one end exceeds push-plate 103, and is equipped with screw thread, connect push rod 102 and push-plate 103 by the nut with the threaded adapter.
Optionally, which further includes fixed plate component, and fixed plate component is set to the end of ontology, is used
In fixed outer feeder line and interior feeder line.Fig. 5 is the partial enlargement diagram of B area in Fig. 3, optionally, outer feeder line 111 and interior feeder line
112 be respectively the first round tube and the second round tube of coaxial arrangement, as shown in figure 5, fixed plate component includes fixed plate 104, first
Fixing piece 105 and the second fixing piece 106.First fixing piece 105 is plate structure, which is provided with fixation hole, the first round tube is worn
In in fixation hole, forming interference fit, the second fixing piece 106 is set in the second round tube, forms interference fit, the first fixing piece
105 and second fixing piece 106 can be connect by bolt with fixed plate 104.
Optionally, fixed plate component, which is equipped with, passes through through-hole and push-plate with the one-to-one through-hole of push rod 102, push rod 102
103 connections.
Optionally, the position on fixed plate component where through-hole is equipped with guide part 107, and guide part 107 is equipped with and push rod 102
Through-hole on corresponding pilot hole, pilot hole and fixed plate component is coaxially disposed, and push rod 102 is arranged in pilot hole.Guide part
107, for the motion guide for push rod 102, avoid pushing or pull on direction and the axis direction of ontology 110 are inconsistent, cause
The impaired problem of existing device.
Optionally, in an alternative embodiment of the invention, driving device includes a push rod, and push rod is screw rod, push rod one
End is connect with sliding contact ring, and the other end is connect with a rotating disk.Position on fixed plate component where through-hole is equipped with guide part,
Guide part is equipped with pilot hole corresponding with push rod, and push rod passes through pilot hole and connect with rotating disk.Pilot hole inner wall is equipped with and screw rod
Compatible screw thread realizes the precession and back-out of push rod, drives the sliding of sliding contact ring by rotating rotating disk.
Optionally, with reference to Fig. 1-4, which further includes reducer union 201, and reducer union 201 is located at the
Between Two-port netwerk 114 and matched load 202, for connecting second port 114 and matched load 202.Optionally, the standing-wave ratio tune
Regulating device can also include interior feedback connector 203, the straight feedback 204 of flange turn.Wherein, interior feedback connector 203 is for connecting interior 112 He of feeder line
Flange turns the interior feedback in straight feedback 204, and flange turns straight feedback 204 between second port 114 and reducer union 203, for connecting
Second port 114 and reducer union 203.
Optionally, on the basis of the above embodiments, as shown in figure 5, finite place piece 108 is arranged on guide part 107, limit
Part 108 can be a Limit screw, and 108 corresponding position of guide part is equipped with the threaded hole of adaptation, and locating part 108 passes through guide part
107 threaded hole, precession or back-out by way of rotation, abuts with push rod 102, fixed after adjusting length of transmission line
Push rod 102, movement of the limitation push rod 102 along the axis direction of ontology 110.
Specifically, can size according to matched load, line characteristic impedance Z0, transmission line load impedance Zl, phase shift is normal
Number β, the parameters such as wavelength of the transmission power of transmitter, frequency and radio frequency voltage signal, establish the simulation model of standing-wave ratio, pass through
The position (i.e. the access length of transmission line) in 1/4 wavelength impedance transformation terminal short circuit face is adjusted, it can be achieved that load is by matching status
To the transformation between mismatch Conditions.Fig. 6 is the simulation result diagram of the return loss of first port 113 under matching status, and Fig. 7 is
Simulation result diagram with the standing-wave ratio of first port 113 under state, as shown in Figure 6 and Figure 7, set transmitter working frequency as
Under conditions of 71.3MHz, under matching status, the standing-wave ratio of first port 113 is 1.0010917, is in close proximity to 1, echo damage
Consumption is -65.262971dB.
Relationship change figure of the Fig. 8 between standing-wave ratio and the access length of transmission line changes 1/4 wavelength impedance and converts terminal
The position in short-circuit face changes the access length of transmission line, in different location, obtain one group of data, standing-wave ratio changes, specifically
, the Numerical Implementation of change variable d can be passed through, wherein difference of the access length l of transmission line for the determining value of d and one, such as Fig. 8,
Simulation result is shown, with the reduction of d, standing-wave ratio is gradually increased, and in the stroke of terminal short circuit face adjusted, standing-wave ratio is adjusted
The standing-wave ratio range of device analog reaches 1.001~23.27.
According to design of Simulation, it is in kind to manufacture standing-wave ratio regulating device, and material object is tested.Fig. 9 is small-power
The functional block diagram of test, as shown in figure 9, the first port 113 of standing-wave ratio regulating device passes through test cable and Network Analyzer
301 connections, Network Analyzer 301 are used as transmitter and analyzer, are the other high frequency voltage of milliwatt for transmission power
Signal, such as power are 10mW, and frequency is the voltage signal of 71.3MHz；Second port 114 connects matched load 202.Adjust standing wave
Than the position of sliding contact ring in regulating device, to adjust the access length of transmission line, Network Analyzer 301 measures first port
113 return loss and standing-wave ratio, and corresponding position is recorded, test data record is as shown in table 1:
Table 1
Figure 10 is that the test result figure that transmission line accesses when length is 104.5cm is being transmitted as shown in Tr1 table in Figure 10
Line access length be 104.5cm when, to frequency be 71.3MHz small signal return loss be -35.78dB；Such as Tr2 in Figure 10
Shown in table, standing-wave ratio 1.03；As shown in Tr3 in Figure 10, the parallel impedance of transmission line and matched load is 48.68 Ω.Figure 11
Test result figure when length is 94.2cm is accessed for transmission line, as shown in Tr1 table in Figure 11, return loss is -21.03dB；
As shown in Tr2 table in Figure 11, standing-wave ratio 1.20；As shown in Tr3 in Figure 11, the parallel impedance of transmission line and matched load is
43.16Ω.Figure 12 is test result figure of transmission line access length when being 77.5cm, as shown in Tr1 table in Figure 12, return loss
For -14.00dB；As shown in Tr2 table in Figure 12, standing-wave ratio 1.50；As shown in Tr3 in Figure 12, transmission line and matched load
Parallel impedance is 35.28 Ω.Figure 13 is test result figure of transmission line access length when being 0cm, as shown in Tr1 table in Figure 13,
Return loss is -0.41dB；As shown in Tr2 table in Figure 13, standing-wave ratio 42.35；As shown in Tr3 in Figure 13, transmission line with
Parallel impedance with load is 1.25 Ω.
The results show that in the case where small signal testing, the standing-wave ratio adjustable range of standing-wave ratio regulating device reaches 1.03~
42.35。
Figure 14 is the functional block diagram of large power test, and as shown in figure 14, the high-power signal that transmitter 302 generates passes through ring
The first port 113 of the feed-ins standing-wave ratio regulating device such as shape device 303, directional coupler 304, transmitter 302 are used for transmission power
For 80kW, frequency is the voltage signal of 71.3MHz.The position in 1/4 wavelength impedance transforming section terminal short circuit face is adjusted, that is, adjusts and stays
The position of sliding contact ring in Bobbi regulating device passes through the detection of directional coupler 304 the to adjust the access length of transmission line
The incident power and reflection power of Single port 113, can extrapolate the standing-wave ratio of first port 113.Test result such as 2 institute of table
Show:
Table 2
By test result as it can be seen that under practical high power state, the adjustable standing-wave ratio range covering of standing-wave ratio regulating device
1.08~62.65.
In the description of this article, it is to be understood that the orientation or positional relationships such as term " on " are based on the figure
Orientation or positional relationship is merely for convenience of description and simplification operation, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the description of this specification, the description of reference term " embodiment " etc. means the specific spy in conjunction with the embodiment
Sign, structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned
The schematic representation of term is not necessarily referring to identical embodiment.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification be only be to understand device, those skilled in the art should
It considers the specification as a whole, the technical solutions in the embodiments can also be appropriately combined, and forming those skilled in the art can
With the other embodiments of understanding.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field
Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within
Within protection scope of the present invention.
Claims (11)
1. a kind of standing-wave ratio regulating device, which is characterized in that including ontology and sliding contact ring；
The ontology includes the outer feeder line and interior feeder line of coaxial arrangement, the inner ring surface of the sliding contact ring and the interior feeder line electricity
Contact, the outer ring surface of sliding contact ring and the outer feeder line are in electrical contact, and the sliding contact ring can be along the axis of the ontology
Direction reciprocatingly slides；
The ontology is equipped with the first port for connecting transmitter, and the second port for matching connection load.
2. standing-wave ratio regulating device according to claim 1, which is characterized in that further include for driving the sliding contact
The driving device that ring reciprocatingly slides along the axis direction of the ontology.
3. standing-wave ratio regulating device according to claim 2, which is characterized in that the driving device includes that at least one pushes away
Bar, one end of the push rod are connect with the sliding contact ring.
4. standing-wave ratio regulating device according to claim 3, which is characterized in that the driving device further includes push-plate, institute
It states push-plate and is set to the one end of the push rod far from the sliding contact ring.
5. standing-wave ratio regulating device according to claim 3, which is characterized in that further include fixed plate component, the fixation
Board group part is set to the end of the ontology, for fixing the outer feeder line and interior feeder line.
6. standing-wave ratio regulating device according to claim 5, which is characterized in that the outer feeder line and interior feeder line are respectively same
The first round tube and the second round tube of axis setting, the fixed plate component includes fixed plate, the first fixing piece and the second fixing piece；Institute
The first fixing piece is stated equipped with fixation hole, first round tube is arranged in the fixation hole, first fixing piece with it is described solid
Fixed board connection；Second fixing piece is set in second round tube, and second fixing piece is connect with the fixed plate.
7. standing-wave ratio regulating device according to claim 5, which is characterized in that the fixed plate component be equipped with it is described
The one-to-one through-hole of push rod, the push rod are arranged in the through-hole.
8. standing-wave ratio regulating device according to claim 5, which is characterized in that on the fixed plate component where through-hole
Position is equipped with guide part, and the guide part is equipped with pilot hole corresponding with push rod, and the push rod is arranged in the pilot hole.
9. standing-wave ratio regulating device according to claim 8, which is characterized in that the push rod is screw rod, the pilot hole
Inner wall is equipped with screw thread compatible with the screw rod.
10. standing-wave ratio regulating device according to claim 1, which is characterized in that further include reducer union, the variable diameter connects
One end of head is connect with the second port, and the other end of reducer union is connect with the matched load.
11. standing-wave ratio regulating device according to claim 8, which is characterized in that finite place piece is set on the guide part,
The locating part runs through the guide part, and alternative is abutted with the push rod, for limiting the push rod along the ontology
Axis direction movement.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110487328A (en) * | 2019-08-14 | 2019-11-22 | 中国科学院近代物理研究所 | A kind of the standing wave resonance aging device and method of high power input coupler |
| CN114980473A (en) * | 2022-05-10 | 2022-08-30 | 无锡核力电科技术有限公司 | Method and device for adjusting parasitic oscillation frequency of high-frequency system of particle accelerator |
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| JPH06215898A (en) * | 1993-01-20 | 1994-08-05 | Mitsubishi Electric Corp | High frequency power introducing device |
| CN201203650Y (en) * | 2008-05-07 | 2009-03-04 | 上海华湘计算机通讯工程有限公司 | Analog aerial mismatched load capable of regulating standing wave ratio and phase at the same time |
| CN101576592A (en) * | 2008-05-07 | 2009-11-11 | 上海华湘计算机通讯工程有限公司 | Artificial antenna mismatching load capable of simultaneously adjusting standing wave ratio and phase |
| CN102411074A (en) * | 2011-08-03 | 2012-04-11 | 广东威特真空电子制造有限公司 | High power waveguide impedance transformer |
| CN105991144A (en) * | 2015-12-22 | 2016-10-05 | 中国科学院等离子体物理研究所 | Method for reducing radio frequency system transmission line standing wave voltage |
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| CN110487328A (en) * | 2019-08-14 | 2019-11-22 | 中国科学院近代物理研究所 | A kind of the standing wave resonance aging device and method of high power input coupler |
| CN114980473A (en) * | 2022-05-10 | 2022-08-30 | 无锡核力电科技术有限公司 | Method and device for adjusting parasitic oscillation frequency of high-frequency system of particle accelerator |
| CN114980473B (en) * | 2022-05-10 | 2023-09-19 | 国电投核力电科(无锡)技术有限公司 | Method and device for adjusting parasitic oscillation frequency of high-frequency system of particle accelerator |
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